Adding custom field to an array

$args = array(
    'meta_query' => array(
        array(
            'key' => 'author_status',
            'value' => 'active',
                    'compare' => 'NOT LIKE'
        )
    )
 );

This Url works

http://codex.wordpress.org/Class_Reference/WP_Query#Custom_Field_Parameters

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